A docking device for connecting water supply pipelines in power plants

Abstract

This invention discloses a docking device for connecting water supply pipelines in power plants, belonging to the field of pipeline docking technology. It includes: a first hoop plate and a second hoop plate, each provided in duplicate and detachably installed at the ends of two pipelines; an outer docking plate and an inner docking plate, the outer docking plate having a guide groove that slides and adapts to the inner docking plate; a limiting mechanism located on the second hoop plate; and a first protective plate and a second protective plate detachably mounted on both the first and second hoop plates. In this design, the device is installed at the corresponding positions of the two pipelines without manual alignment. The limiting mechanism can move either the outer or inner docking plate, improving welding effect and docking efficiency. Furthermore, the limiting mechanism ensures tight alignment at the pipeline ends, reducing gaps and misalignment. The first and second protective plates protect the welded joint, greatly preventing deformation and cracking caused by direct stress, thus improving the welding quality of the pipeline.

Description

Technical Field

[0001] This invention relates to the field of pipeline connection technology, and more specifically, to a connection device for connecting water supply pipelines in power plants. Background Technology

[0002] Water supply pipelines in power plants are a crucial component of the power generation process. In thermal power plants, nuclear power plants, and certain renewable energy generation facilities, water is used as a working fluid or cooling medium. Some of these pipelines are made of steel, and multiple steel pipes need to be connected, primarily through welding at the joints. Typically, an electric hoist or crane is used to move and align the ends of the two pipes, then workers assist in aligning the joints, and finally, another worker welds the connection.

[0003] However, when aligning two pipes using cranes and personnel, the pipes are not tight enough, which can lead to gaps and misalignments. This can result in problems such as incomplete welding and large weld joints during the welding process, resulting in poor pipe welding quality. Furthermore, it requires multiple operators and constant adjustments to the connection position, which is time-consuming, labor-intensive, inefficient, and costly. In addition, there are no corresponding protective measures after the pipes are welded, making the pipe connection prone to deformation and cracks, which greatly affects the quality of the pipe connection.

[0004] Therefore, it is necessary to provide a docking device for connecting water supply pipelines in power plants to solve the above-mentioned technical problems. Summary of the Invention

[0005] The purpose of this invention is to provide a docking device for connecting water supply pipelines in power plants to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A docking device for connecting water supply pipelines in power plants, comprising:

[0008] The first hoop plate and the second hoop plate are each provided in pairs and can be detachably installed at the ends of the two pipes;

[0009] The outer docking plate and the inner docking plate are respectively disposed on the first hoop plate and the second hoop plate, and the outer docking plate is provided with a guide groove that is slidably adapted to the inner docking plate;

[0010] A limiting mechanism, located on the second hoop plate, is used to move the outer docking plate and the inner docking plate closer or further apart from each other.

[0011] Both the first hoop and the second hoop are detachably provided with a first guard plate and a second guard plate. The first guard plate has a slot, and the second hoop has a connecting plate that is compatible with the slot that is slidably connected inside.

[0012] Furthermore, a first support plate and a second support plate are respectively provided on the outer walls of the first hoop plate and the second hoop plate, and the docking outer plate and the docking inner plate are respectively connected to the first support plate and the second support plate.

[0013] Furthermore, the limiting mechanism includes:

[0014] A transmission seat is provided on the second support plate, and a transmission cavity is opened in the transmission seat. A toothed plate is slidably connected in the transmission seat.

[0015] A transmission component, located within the transmission cavity, is used to drive the toothed plate to move;

[0016] A locking component is provided on the toothed plate to connect the toothed plate to the docking outer plate.

[0017] Furthermore, the transmission component includes:

[0018] Both the horizontal and vertical shafts are rotatably connected within the transmission cavity. The horizontal shaft is equipped with a worm gear and a gear that meshes with the gear plate.

[0019] A worm gear is mounted on the vertical shaft and meshes with the worm wheel.

[0020] Furthermore, a limiting groove is formed on the docking outer plate, and the locking component:

[0021] The first elastic element has one end disposed on the toothed plate and the other end disposed on a pull plate. The pull plate is provided with a locking rod, the end of which movably passes through the toothed plate and is adapted to the limiting groove.

[0022] Furthermore, the inner sidewalls of the first and second hoop plates are provided with mounting grooves that are adapted to the first and second guard plates. The mounting grooves are provided with mounting holes. The first and second guard plates are provided with fixing blocks that are adapted to the mounting holes. The fixing blocks are elastically provided with mounting blocks. The first and second guard plates are provided with linkage cavities. The linkage cavities are provided with linkage components for moving the mounting blocks.

[0023] Furthermore, the fixing block has an inner groove that is slidably connected to the mounting block, a second elastic element is provided between the mounting block and the inner wall of the inner groove, a first pull rope is provided at the inner end of the mounting block, and a channel communicating with the linkage cavity is provided in the fixing block.

[0024] Furthermore, the linkage component includes a third elastic element disposed on the inner wall of the linkage cavity, and a pressure rod is provided at the other end of the third elastic element. One end of the pressure rod movably passes through the linkage cavity, and a second pull rope is provided at the other end of the pressure rod. The other end of the second pull rope is connected to the first pull rope.

[0025] Furthermore, each of the first and second protective plates has an insert block at one end, a sliding cavity is formed in the insert block, a stop block is slidably connected in the sliding cavity, and a fourth elastic element is provided between the stop block and the inner wall of the sliding cavity. The other end of the first and second protective plates has an insertion hole adapted to the insert block, and a limiting hole adapted to the stop block is provided in the insertion hole.

[0026] Furthermore, a push block is slidably connected inside the limiting hole, a moving rod is provided on one side of the push block, the other end of the moving rod movably passes through the limiting hole and is provided with a push plate, and a fifth elastic element connected to the push plate is sleeved on the outside of the moving rod.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. In this solution, after the device is installed at the corresponding positions at the ends of the two pipes, the inner mating plate is inserted into the guide groove of the outer mating plate and moves. Subsequent manual alignment is unnecessary; the outer or inner mating plate can be moved by operating the limiting mechanism, bringing the first and second clamping plates closer together, ultimately causing the two pipes to move closer together. Through the cooperation of the limiting mechanism, the outer mating plate, and the inner mating plate, accurate alignment between the two pipes is achieved without manual assistance or constant adjustments, saving significant labor and time and greatly improving welding quality and docking efficiency. Furthermore, the limiting mechanism ensures tight and stable alignment at the ends of the two pipes, greatly reducing gaps and misalignments, making welding more convenient and faster. It also reduces problems such as incomplete welds and large weld joints, significantly improving pipe welding quality and subsequent pipe performance, and can be widely promoted and used.

[0029] 2. In this solution, after removing the first and second clamps from the pipe, the first and second protective plates remain fixedly attached. These plates protect the welded pipe joint, significantly preventing deformation and cracking caused by direct stress after removal. This effectively protects the welded area, allowing sufficient time for cooling and stabilization, greatly improving the quality of pipe connection and enhancing practicality. Furthermore, after removing the first and second clamps from the welded pipe, additional first and second protective plates can be installed before proceeding to the next pipe connection, greatly improving pipe connection and welding efficiency and significantly accelerating the pipeline construction process.

[0030] 3. In this solution, once the two first clamps or two second clamps are fixedly fitted onto the pipe, the two first protective plates or two second protective plates will be connected to each other. At the same time, the connection between the first protective plate or second protective plate and the first clamp or second clamp will be released through the action of the linkage component. After removing the first clamp or second clamp, the first protective plate or second protective plate will still remain on the pipe. The separation is convenient and simple, without the need for additional operations to connect and separate the first protective plate or second protective plate. The structure is ingenious, saves a lot of time and steps, and is more conducive to the use of workers, making it highly practical. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the docking device of the present invention installed on two pipes.

[0032] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0033] Figure 3 This is a schematic diagram of the structure of the first hoop plate and its components according to the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the second hoop plate and its components according to the present invention;

[0035] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0036] Figure 6 This is a schematic cross-sectional view of the transmission seat structure of the present invention;

[0037] Figure 7 A schematic diagram of the state structure of the first hoop plate and the second hoop plate of the present invention with the first guard plate and the second guard plate installed;

[0038] Figure 8 This is a schematic diagram of the state structure of the two first protective plates before they are connected in this invention;

[0039] Figure 9 for Figure 8 Enlarged structural diagram at point C;

[0040] Figure 10 This is a three-dimensional structural diagram of the first and second protective plates on the two pipes of the present invention;

[0041] Figure 11 This is a partial cross-sectional view of the structure after the two first protective plates of the present invention are connected;

[0042] Figure 12 This is a side view of the partial cross-section of the first protective plate of the present invention;

[0043] Figure 13 for Figure 12 Enlarged structural diagram at point D;

[0044] Figure 14 for Figure 12 Enlarged structural diagram at point E;

[0045] Figure 15 This is a schematic diagram showing the state of the first and second protective plates on the pipeline after the first and second hoop plates are removed in this invention.

[0046] Explanation of the labels in the diagram:

[0047] 1. First hoop plate; 2. Second hoop plate; 3. Outer mating plate; 4. Inner mating plate; 5. Guide groove; 6. Limiting mechanism; 61. Transmission seat; 62. Transmission cavity; 63. Gear plate; 64. Transmission component; 641. Horizontal shaft; 642. Vertical shaft; 643. Worm gear; 644. Gear; 645. Worm; 65. Locking component; 651. First elastic element; 652. Pull plate; 653. Locking rod; 7. First guard plate; 8. Second guard plate; 9. Slot; 10. Connecting insert plate; 11. First support plate; 12. Second support plate; 13. Limiting groove; 14. Mounting groove; 15. Mounting hole; 16. Fixing block; 17. Mounting block; 18. Linkage cavity; 19. Linkage component; 191. Third elastic element; 192. Pressure rod; 193. Second pull rope; 20. Inner groove; 21. Second elastic element; 22. First pull rope; 23. Insertion block; 24. Sliding cavity; 25. Stop block; 26. Fourth elastic element; 27. Insertion hole; 28. Limiting hole; 29. ​​Push block; 30. Moving rod; 31. Push plate; 32. Fifth elastic element; 33. Fixing plate; 34. Groove. Detailed Implementation

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] Please see Figure 1-15A docking device for connecting water supply pipelines in a power plant includes: a first hoop plate 1 and a second hoop plate 2, each having two plates, each detachably installed at the end of two pipelines; a docking outer plate 3 and a docking inner plate 4, respectively disposed on the first hoop plate 1 and the second hoop plate 2, the docking outer plate 3 having a guide groove 5 that slides and adapts to the docking inner plate 4; a limiting mechanism 6 disposed on the second hoop plate 2, used to move the docking outer plate 3 and the docking inner plate 4 closer to or further apart from each other; a first guard plate 7 and a second guard plate 8, both detachably disposed on the first hoop plate 1 and the second hoop plate 2, the first guard plate 7 having a slot 9, and a connecting insert plate 10 slidably connected inside the second hoop plate 2 to the slot 9. A first support plate 11 and a second support plate 12 are respectively disposed on the outer walls of the first hoop plate 1 and the second hoop plate 2, the docking outer plate 3 and the docking inner plate 4 being connected to the first support plate 11 and the second support plate 12 respectively.

[0050] In use, one or two pipes are lifted by a crane, and the device is installed at the corresponding positions at the ends of the two pipes. First, the first protective plate 7 and the second protective plate 8 are installed on the inner walls of the first clamp plate 1 and the second clamp plate 2, respectively. Then, the first clamp plate 1 and the second clamp plate 2 are fixedly installed on the pipes on both sides. Finally, the two first clamp plates 1 and the two second clamp plates 2 are fixed together. After the two first clamp plates 1 or the two second clamp plates 2 are fixed on the pipes, the two first protective plates 7 and the two second protective plates 8 will be interconnected.

[0051] Then, the pipes can be moved by crane or manually to initially align the two pipes, allowing the inner mating plate 4 to be inserted into the guide groove 5 of the outer mating plate 3. At this point, the inner mating plate 4 can move along the guide groove 5. Subsequent manual alignment is not required. Then, the outer mating plate 3 or the inner mating plate 4 can be moved by operating the limiting mechanism 6, bringing the outer mating plate 3 and the inner mating plate 4 closer together. This will bring the first clamping plate 1 and the second clamping plate 2 closer together, ultimately bringing the two pipes closer together and into tight contact. Through the cooperation of the limiting mechanism 6, the outer mating plate 3, and the inner mating plate 4, not only can the two pipes... The alignment between pipes eliminates the need for manual assistance and constant adjustments to the docking position. The ends of the two pipes can be precisely aligned, improving subsequent welding results, saving significant labor and time, greatly increasing docking efficiency, and reducing construction costs. Furthermore, the limiting mechanism 6 ensures tight and stable alignment at the two pipe ends, greatly reducing gaps and misalignments. This makes subsequent welding more convenient and faster, while reducing issues such as incomplete welds and large weld joints, significantly improving the welding quality of pipe connections and thus enhancing the subsequent performance of the pipes. With its strong practicality, it can be widely adopted.

[0052] After the first clamp plate 1 and the second clamp plate 2 are installed on the pipes on both sides, the two first guard plates 7 and the two second guard plates 8 will be connected to each other. At the same time, the first guard plate 7 will be disconnected from the first clamp plate 1, and the second guard plate 8 will be disconnected from the second clamp plate 2. After the connection between the two pipes is welded, the connecting insert plate 10 will move outward from the second guard plate 8, and finally the connecting insert plate 10 will be inserted into the slot 9 of the first guard plate 7, thus connecting the first guard plate 7 and the second guard plate 8. Then, the first clamp 1 and the second clamp 2 can be removed from the pipe. The removed first clamp 1 and the second clamp 2 will separate from the first protective plate 7 and the second protective plate 8 respectively. That is, at this time, the first protective plate 7 and the second protective plate 8 are still fixed on the pipe. The first protective plate 7 and the second protective plate 8 can protect the welded pipe joint. This can greatly avoid deformation and cracking caused by direct stress at the weld after the first clamp 1 and the second clamp 2 are removed. By having the first protective plate 7 and the second protective plate 8 on both sides of the pipe weld bear the force, the middle weld position can be well protected, allowing it enough time to cool and stabilize. This greatly improves the pipe connection quality and has strong practicality.

[0053] Furthermore, after removing the first clamp plate 1 and the second clamp plate 2 from the welded pipe, the other first protective plate 7 and the second protective plate 8 can be installed on it respectively. Then, the next pipe connection operation can be carried out. This can greatly improve the efficiency of pipe connection and welding, significantly improve the progress of pipe construction, and reduce the construction cycle and cost.

[0054] The connecting plate 10 has multiple grooves 34. The grooves 34 can easily apply force to the connecting plate 10, that is, they can more easily move the connecting plate 10.

[0055] Both the first hoop 1 and the second hoop 2 are provided with fixing plates 33. The two first hoop 1 are fixed together by bolts and fixing plates 33, so that the first hoop 1 and the second hoop 2 can be fixed to the two pipes to be connected respectively. The disassembly and assembly are simple and convenient, saving time and effort.

[0056] In this embodiment, preferably, please refer to [reference needed]. Figure 1-7The limiting mechanism 6 includes: a transmission seat 61, which is disposed on the second support plate 12, and a transmission cavity 62 is opened in the transmission seat 61. A toothed plate 63 is slidably connected in the transmission seat 61; a transmission component 64, which is disposed in the transmission cavity 62 and is used to drive the toothed plate 63 to move; and a locking component 65, which is disposed on the toothed plate 63 and is used to connect the toothed plate 63 with the docking outer plate 3. When the two pipes move closer together, i.e., the first clamp plate 1 and the second clamp plate 2 move closer together, the inner mating plate 4 moves along the guide groove 5 of the outer mating plate 3. By operating the transmission component 64, the toothed plate 63 can be moved, so that the locking component 65 on the toothed plate 63 engages with the outer mating plate 3. At this time, the first clamp plate 1 and the second clamp plate 2 are connected to each other, so that the two pipes are relatively fixed, which can ensure the stability of welding, prevent misalignment of the interface, facilitate welding processing, and improve welding quality. Afterwards, the toothed plate 63 can be moved by the transmission component 64, so that the first clamp plate 1 and the second clamp plate 2 move closer together, so that the interface between the two pipes is in close contact, which can greatly avoid the situation that there is a large gap between the two pipes, thereby effectively improving the welding quality at the pipe interface and achieving good performance.

[0057] In this embodiment, preferably, please refer to [reference needed]. Figure 6 The transmission component 64 includes a horizontal shaft 641 and a vertical shaft 642, both rotatably connected within the transmission cavity 62. The horizontal shaft 641 is equipped with a worm gear 643 and a gear 644 meshing with the gear plate 63. A worm 645 is mounted on the vertical shaft 642 and meshes with the worm gear 643. When the vertical shaft 642 is rotated, the worm 645 rotates. The rotation of the worm 645 then drives the worm gear 643 and the horizontal shaft 641 to rotate. The rotation of the horizontal shaft 641, in turn, drives the gear 644 to rotate. The gear 644 ultimately moves the gear plate 63 it meshes with. Due to the self-locking property of the worm gear 64 and the worm 645, the gear plate 63 can move through the transmission component 64. The gear plate 63 cannot, in turn, drive the horizontal shaft 641 or the vertical shaft 642 to rotate, thus ensuring the stability of the gear plate 63, and consequently, the stability of the connection between the first clamp plate 1 and the second clamp plate 2.

[0058] In this embodiment, preferably, please refer to [reference needed]. Figure 1-2 and Figure 4-5 A limiting groove 13 is provided on the outer plate 3. The locking component 65 is a first elastic element 651, one end of which is provided on the toothed plate 63, and the other end is provided with a pull plate 652. The pull plate 652 is provided with a locking rod 653. The end of the locking rod 653 moves through the toothed plate 63 and is adapted to the limiting groove 13.

[0059] The first elastic element 651 in this application can be a spring or other elastic structure. When the locking rod 653 moves and contacts the docking outer plate 3, it will be compressed and moved. Alternatively, the pull plate 652 can be pulled directly to move the locking rod 653. At this time, the first elastic element 651 is in a stretched state. Then, when the locking rod 653 moves to the limiting groove 13 position of the docking outer plate 3, the locking rod 653 is no longer compressed or the pull plate 652 is released. The rebound force of the first elastic element 651 will drive the locking rod 653 to move. Finally, the locking rod 653 will enter the limiting groove 13, thereby connecting the toothed plate 63 with the docking outer plate 3, that is, connecting the docking outer plate 3 and the docking inner plate 4, the first hoop plate 1 and the second hoop plate 2 relative to each other.

[0060] In this embodiment, preferably, please refer to [reference needed]. Figure 1 , Figure 3-4 and Figure 7-15 The inner sidewalls of the first hoop plate 1 and the second hoop plate 2 are provided with mounting grooves 14 that are adapted to the first guard plate 7 and the second guard plate 8. Mounting holes 15 are provided in the mounting grooves 14. The mounting holes 15 are inverted "convex" shapes. The first guard plate 7 and the second guard plate 8 are provided with fixing blocks 16 that are adapted to the mounting holes 15. Mounting blocks 17 are elastically provided on the fixing blocks 16. The first guard plate 7 and the second guard plate 8 are provided with linkage cavities 18. Linkage components 19 for moving the mounting blocks 17 are provided in the linkage cavities 18.

[0061] The first protective plate 7 and the second protective plate 8 are placed into the mounting slots 14 of the first clamp plate 1 and the second clamp plate 2, respectively. The fixing blocks 16 on the first protective plate 7 and the second protective plate 8 will gradually insert into the mounting holes 15 of the mounting slots 14. The mounting blocks 17, upon contact with the mounting holes 15, will be pressed and move towards the fixing blocks 16. Once installed in place, the mounting holes 15 will no longer compress the mounting blocks 17, and the mounting blocks 17 will move out of the fixing blocks 16. Thus, the first protective plate 7 and the second protective plate 8 can be connected to the first clamp plate 1 and the second clamp plate 2, respectively, through the mounting blocks 17. After the first clamp plate 1 and the second clamp plate 2 are installed on the pipe, the two first protective plates 7 and the two second protective plates 8 on the pipe will be fixed together. At this time, the linkage component 19 will cause the mounting blocks 17 to move towards the fixing blocks 16. That is, the first protective plates 7 and the second protective plates 8 will no longer be connected to the first clamp plate 1 and the second clamp plate 2, i.e., they will disengage. Figure 10 and Figure 15 The state shown.

[0062] In this embodiment, preferably, please refer to [reference needed]. Figure 8 , Figure 10 and Figure 12-15The fixing block 16 has an inner groove 20 that slides through the mounting block 17. A second elastic element 21 is provided between the mounting block 17 and the inner wall of the inner groove 20. A first pull rope 22 is provided at the inner end of the mounting block 17. The fixing block 16 has a channel communicating with the linkage cavity 18. The second elastic element 21 in this application can be a spring or other elastic structure. When the mounting block 17 is compressed, it will move into the inner groove 20 and compress the second elastic element 21. When the mounting block 17 is not compressed, the rebound force of the second elastic element 21 will cause the mounting block 17 to move out of the inner groove 20.

[0063] In this embodiment, preferably, please refer to [reference needed]. Figure 12-14 The linkage component 19 includes a third elastic element 191 disposed on the inner wall of the linkage cavity 18. A pressure rod 192 is provided at the other end of the third elastic element 191. One end of the pressure rod 192 movably passes through the linkage cavity 18, and the other end of the pressure rod 192 is provided with a second pull rope 193. The other end of the second pull rope 193 is connected to the first pull rope 22. The third elastic element 191 in this application can be a spring or other elastic structure.

[0064] After the two first clamps 1 or the two second clamps 2 are fixed on the pipe, the ends of the two first guard plates 7 or the two second guard plates 8 will gradually approach each other. At this time, the pressure rod 192 will be squeezed by the ends of the first guard plates 7 or the second guard plates 8, and the pressure rod 192 will move into the linkage cavity 18 and stretch the third elastic element 191. At this time, the end of the pressure rod 192 will gradually pull the second pull rope 193, and the other end of the second pull rope 193 will pull the first pull rope 22. The first pull rope 22 will pull the mounting block 17 to move into the inner groove 20, that is, the mounting block 17 will eventually be disengaged from the mounting hole 15. At this time, the connection between the first guard plate 7 or the second guard plate 8 and the first clamp 1 or the second clamp 2 will be released. That is, after removing the first clamp 1 or the second clamp 2, the first guard plate 7 or the second guard plate 8 will still remain on the pipe. The separation is convenient and simple, without the need for additional operation. The structure is ingenious, saves a lot of time and steps, and is more conducive to the use of workers. It is highly practical.

[0065] The inner wall of the linkage cavity 18 is provided with multiple guide wheels, and the pressure rod 192 is also provided with guide wheels to realize the turning of the second pull rope 193. The channel is also provided with guide wheels to realize the turning of the first pull rope 22. This can guide the force on the first pull rope 22 and the second pull rope 193, reduce their resistance and friction, and further improve the service life and performance of the first pull rope 22 and the second pull rope 193.

[0066] In this embodiment, preferably, please refer to [reference needed]. Figure 8-12Each of the first guard plate 7 and the second guard plate 8 has an insert block 23 at one end. The insert block 23 has a sliding cavity 24. A stop block 25 is slidably connected in the sliding cavity 24. A fourth elastic element 26 is provided between the stop block 25 and the inner wall of the sliding cavity 24. The other end of the first guard plate 7 and the second guard plate 8 has an insertion hole 27 that matches the insert block 23. The insertion hole 27 has a limiting hole 28 that matches the stop block 25. The fourth elastic element 26 in this application can be a spring or other elastic structure. After the two first clamps 1 or the two second clamps 2 are fixedly fitted onto the pipe, the ends of the two first guard plates 7 or the two second guard plates 8 will gradually approach each other. At this time, the inserts 23 on the first guard plates 7 and the second guard plates 8 will gradually be inserted into the insertion holes 27 of the first guard plates 7 and the second guard plates 8 connected to them. The stop block 25 will be squeezed into the sliding cavity 24 by the insertion hole 27 and compress the fourth elastic element 26. When the stop block 25 is in the position of the limiting hole 28, the rebound force of the fourth elastic element 26 will drive the stop block 25 into the limiting hole 28. Thus, the insert 23 can be fixed in the insertion hole 27 by the stop block 25, thereby completing the connection between the two first guard plates 7 or the two second guard plates 8.

[0067] In this embodiment, preferably, please refer to [reference needed]. Figure 8-11 A push block 29 is slidably connected inside the limiting hole 28. A moving rod 30 is provided on one side of the push block 29. The other end of the moving rod 30 movably passes through the limiting hole 28 and is provided with a push plate 31. A fifth elastic element 32 connected to the push plate 31 is sleeved on the outside of the moving rod 30. The fifth elastic element 32 in this application can be a spring or other elastic structure. When the pipe welding point has cooled and stabilized, the push plate 31 can be squeezed to drive the moving rod 30 to move and compress the fifth elastic element 32. The moving rod 30 will drive the push block 29 to move. The push block 29 will gradually push the stop block 25 to move, so that the stop block 25 enters the sliding cavity 24. When the stop block 25 is disengaged from the limiting hole 28, the insert block 23 can be removed from the insert hole 27. Thus, the two first guard plates 7 or the two second guard plates 8 can be separated. Afterwards, the first guard plates 7 and the second guard plates 8 can be reinstalled on other first hoop plates 1 and second hoop plates 2 for use. They are recyclable, which greatly improves their performance and makes them highly practical.

[0068] It should be understood that the examples and embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Those skilled in the art can make various modifications or changes based on them. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

[0069] It should be noted that if the embodiments of the present invention involve directional indicators such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indicators will also change accordingly.

[0070] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

Claims

1. A docking device for connecting water supply pipelines in power plants, characterized in that, include: The first hoop plate (1) and the second hoop plate (2) are each provided in two and can be detachably installed at the ends of the two pipes; The outer plate (3) and the inner plate (4) are respectively disposed on the first hoop plate (1) and the second hoop plate (2). The outer plate (3) is provided with a guide groove (5) that is slidably adapted to the inner plate (4). The limiting mechanism (6) is provided on the second hoop plate (2) and is used to drive the docking outer plate (3) and the docking inner plate (4) to move closer or further apart; The first hoop (1) and the second hoop (2) are each detachably provided with a first guard plate (7) and a second guard plate (8). The first guard plate (7) is provided with a slot (9). The second hoop (2) is slidably connected with a connecting plate (10) that is compatible with the slot (9). The inner sidewalls of the first hoop plate (1) and the second hoop plate (2) are provided with mounting grooves (14) that are adapted to the first guard plate (7) and the second guard plate (8). The mounting grooves (14) are provided with mounting holes (15). The first guard plate (7) and the second guard plate (8) are provided with fixing blocks (16) that are adapted to the mounting holes (15). The fixing blocks (16) are elastically provided with mounting blocks (17). The first guard plate (7) and the second guard plate (8) are provided with linkage cavities (18). The linkage cavities (18) are provided with linkage components (19) for moving the mounting blocks (17). The fixing block (16) has an inner groove (20) that is slidably connected to the mounting block (17). A second elastic element (21) is provided between the mounting block (17) and the inner wall of the inner groove (20). A first pull rope (22) is provided at the inner end of the mounting block (17). The fixing block (16) has a channel that communicates with the linkage cavity (18). The linkage component (19) includes a third elastic element (191) disposed on the inner wall of the linkage cavity (18). The other end of the third elastic element (191) is provided with a pressure rod (192). One end of the pressure rod (192) movably passes through the linkage cavity (18). The other end of the pressure rod (192) is provided with a second pull rope (193). The other end of the second pull rope (193) is connected to the first pull rope (22). One end of the first guard plate (7) and the second guard plate (8) is provided with a plug (23), and a sliding cavity (24) is opened in the plug (23). A stop block (25) is slidably connected in the sliding cavity (24). A fourth elastic element (26) is provided between the stop block (25) and the inner wall of the sliding cavity (24). The other end of the first guard plate (7) and the second guard plate (8) is provided with a plug hole (27) that is adapted to the plug (23). A limiting hole (28) that is adapted to the stop block (25) is provided in the plug hole (27). A push block (29) is slidably connected inside the limiting hole (28). A moving rod (30) is provided on one side of the push block (29). The other end of the moving rod (30) moves through the limiting hole (28) and is provided with a push plate (31). A fifth elastic element (32) connected to the push plate (31) is sleeved on the outside of the moving rod (30).

2. The docking device for connecting water supply pipelines in power plants according to claim 1, characterized in that, The outer walls of the first hoop (1) and the second hoop (2) are respectively provided with a first support plate (11) and a second support plate (12), and the docking outer plate (3) and the docking inner plate (4) are respectively connected to the first support plate (11) and the second support plate (12).

3. A docking device for connecting water supply pipelines in power plants according to claim 2, characterized in that, The limiting mechanism (6) includes: A transmission seat (61) is provided on the second support plate (12). A transmission cavity (62) is provided in the transmission seat (61). A toothed plate (63) is slidably connected in the transmission seat (61). A transmission component (64) is disposed in the transmission cavity (62) and is used to drive the toothed plate (63) to move; A locking component (65) is provided on the toothed plate (63) to connect the toothed plate (63) with the docking outer plate (3).

4. A docking device for connecting water supply pipelines in power plants according to claim 3, characterized in that, The transmission component (64) includes: The horizontal shaft (641) and the vertical shaft (642) are both rotatably connected in the transmission cavity (62). The horizontal shaft (641) is provided with a worm gear (643) and a gear (644) that meshes with the toothed plate (63). The worm (645) is mounted on the vertical shaft (642) and meshes with the worm wheel (643).

5. A docking device for connecting water supply pipelines in power plants according to claim 3, characterized in that, The outer docking plate (3) has a limiting groove (13), and the locking component (65) is: The first elastic element (651) has one end on the toothed plate (63) and the other end on a pull plate (652). The pull plate (652) has a locking rod (653). The end of the locking rod (653) moves through the toothed plate (63) and is adapted to the limiting groove (13).

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